DTC Logic
DTC DETECTION LOGIC
DTC | Trouble diagnosis name | DTC detection condition | Possible causes |
P0743 | Torque Converter Clutch Circuit Electrical | The following diagnosis conditions
are met, and the TCM
torque converter clutch solenoid
valve current monitor reading
is 200 mA or less
continuously for 0.5 seconds or
more. - Diagnosis condition - Solenoid valve output current: 750 mA or more - GND short circuit diagnosis occurs in the solenoid valve drive circuit. - TCM power supply voltage: 10 V < TCM power supply voltage < 16 V |
- Harness or connector
(Short circuit to ground in the
torque converter clutch solenoid
valve circuit) - Torque converter clutch solenoid valve |
DTC CONFIRMATION PROCEDURE
CAUTION: Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
Selector lever : D position
Vehicle speed : 45 km/h (28 MPH) or more
3. Stop the vehicle.
4. Check the first trip DTC.
Is "P0743" detected?
YES >> Go to TM, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK CIRCUIT BETWEEN TCM AND A/T UNIT
Is the check result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE
Check the torque converter clutch solenoid valve. Refer to TM, "Component Inspection (Torque Converter Clutch Solenoid Valve)".
Is the check result normal?
YES >> Check intermittent incident. Refer to GI, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Component Inspection (Torque Converter Clutch Solenoid Valve)
1.CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE
Check the resistance between the A/T unit connector terminal and ground.
Is the check result normal?
YES >> INSPECTION END
NO >> There is a malfunction of the torque converter clutch solenoid valve. Replace the transaxle assembly. Refer to TM, "Removal and Installation".
DTC Logic DTC DETECTION LOGIC DTC Trouble diagnosis name DTC detection condition Possible causes P0740 Torque Converter Clutch Circuit/ Open The follow diagnosis co ...
Description This DTC is detected when the torque converter clutch solenoid valve is electrically normal but the torque converter clutch does not engage. This is not due to an electrical malfunctio ...
P0732 2GR Incorrect ratio
Description
This malfunction is detected when the A/T does not shift into 2GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...
Door lock function
DOOR LOCK FUNCTION : System Description
SYSTEM DIAGRAM
DOOR REQUEST SWITCH OPERATION
When pressing the request switch, it is possible to lock and unlock the door
by carrying the Intelligent Key.
OPERATION DESCRIPTION
When the BCM detects that each door request switch is pressed, it s ...